<%--
  Created by IntelliJ IDEA.
  User: Jovi
  Date: 2018/4/10
  Time: 下午1:58
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<c:set var="uid" value="admin" scope="request"/>
用户名：${uid}
<c:remove var="uid" scope="request"/>
用户名：${uid}
</body>
</html>